Ice swimming – ‘Ice Mile’ and ‘1 km Ice event’

Table 2 Coefficients and standard errors (SE) from a multivariable regression model. Interactions between variables are also presented

Parameter	Estimate	SE	df	t	p-value
Constant term	30.61	22.39	141.26	1.36	0.17
Female	0.23	0.17	129.30	1.29	0.19
Calendar year	−0.01	0.01	141.25	−1.32	0.18
Number of attempts	0.007	0.01	82.60	0.62	0.53
Water temperature	−0.005	0.01	59.42	−0.48	0.63
Wind chill	0.002	0.002	82.47	0.86	0.38
Female × Number of attempts	−0.12	0.09	61.70	−1.31	0.19
Female × Water temperature	−0.04	0.03	148.47	−1.40	0.16
Female × Wind chill	−0.03	0.03	143.75	−1.07	0.28
Water temperature × × Wind chill	0.0003	0.001	75.83	0.31	0.75
Female × Water temperature × Wind chill	0.006	0.008	149.11	0.80	0.42
Female × Number of attempts × Water temperature × Wind chill	0.002	0.002	55.64	0.95	0.34
Female × Number of attempts × Water temperature × Wind chill	−8.5 × E⁻⁵	0.0005	37.5	−0.16	0.87

ISSN: 2052-1847